HTML Checking for Large Sites
Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as XML 1.0.
Malformed comment syntax has been found, check out the affected comment.
HTML comments are helpful to leave notes about the code right next to it. To create a comment, it must start with <!-- and end with -->, as in this example:
<!-- Good comment -->
<!--
Comments can
be multi-line
-->A common cause for a malformed comment is using too many hyphens (-) as in this example:
<!-- Wrong comment -->6,250 HTML checks per week. Fully automated.
Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.